Author Topic: Updated Arca Website (Romainia!) (Read 3304 times)

ericr · « **on:** 09/20/2006 04:33 am »

Arcaspace, the Romainian XPrize team has just recently revamped their website.

While they are very much a shoestring operation, their efforts have produced some impressive accomplishments, incuding all composite tanks, mono-propellant engines and successful launches of subscale test vehicles.

Their latest project (STABILO) was an interesting read. At least no one will be able to say they are unable to think outside the box!

http://www.arcaspace.ro/en/home.htm

ericr · « **Reply #1 on:** 09/22/2006 10:25 am »

No one has any comments on their new Stabilo vehicle?

josh_simonson · « **Reply #2 on:** 09/23/2006 12:37 am »

As long as they can keep the exhaust from sooting up the windows it looks workable.

I think you'd need to air launch with that booster over cabin design, otherwise you'd be caught between a bomb and the ground if something went wrong.

publiusr · « **Reply #3 on:** 10/17/2006 08:39 pm »

Well--it is its own escape tower at the very least. A tractor rocket is a bit less likely to flip out on you--or so you would think.

meiza · « **Reply #4 on:** 10/17/2006 09:48 pm »

That's a fallacy. A rigid tractor is no more stable than a pusher. When the rocket turns, the rigidly attached engine turns too and always thrusts through the center of the rocket. It is neutrally stable or however it's said.

Balancing a standing stick on a finger is different, since the force is always upwards regards to gravity: when the stick tilts, the force points upwards, not along the stick, tilting the stick even more. It is unstable. If you hold the stick from the top, it's the opposite of course and you get a pendulum.